datatype sizes

Can anyone point me to a manual reference that gives the byte requirements for each of the Oracle datatypes. I'm trying to estimate the disk space requirements for a database. I've found the "higher level" formulas that calculate the files size based on a row of a given size. But they show NADA on how to calculate the row size. Specifically, I need the size for a DATE and a NUMBER. I assume, given that a NUMBER datatype can handle up to 32 significant digits, it must be at least 16 bytes. (If I did my math corrrectly. <big ole grin>)

Thanks,

Gary Shell Received on Fri Aug 23 1996 - 00:00:00 CEST